Citace podle APA (7th ed.)
Doerksen, E. (1949). Black gems for His crown: African stories for children. Sudan Interior Mission.
Citace podle Chicago (17th ed.)
Doerksen, Eva. Black Gems for His Crown: African Stories for Children. USA: Sudan Interior Mission, 1949.
Citace podle MLA (9th ed.)
Doerksen, Eva. Black Gems for His Crown: African Stories for Children. Sudan Interior Mission, 1949.
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